Adjustable rubber-tire setter.



No. e7|,a a9. Patent ed Apr. 9, 19m. J. A. JOHNSON.

ADJUSTABLE RUBBEB TIRE SETTEB. (Applicltion filed May 26, 1900) (lo Model.)

' U ITED STATES PATENT OFFICE.

JOHN A. JOHNSON, oF BARNESVILLE, eFOReiA, AssIeNoR OF ONE-HALF TO JAMES P. THUBMAN, OF SAME PLACE.

"ADJUSTABLE RUBBER-TIRE SETTER.

SPECIFICATION forming part of Letters Patent No. 671,889, dated April 9, 1901.

Application filed May 26, 1900. fierial No. 18,126. (No model.)

To all whom, it may concern.-

Be it known that I, JOHN A. JOHNSON, a citizen of the United States, and a resident of Barnesville, in the county of Pike and State of Georgia, have invented a certain new and useful Improvement in Adjustable Rubber: Tire Setters, of which the following is a speci fication.

The in vention relates to ti re-setters intended for use in bringing the ends of arubber tire'together after the ends of the metal band einbedd ed in the rubber tire have been secured together. The usual method of securing tires of this character in the channel of the folly is to crowd the rubber back from the ends of the metal band, then place the tire in the channel and with suitable clamps draw the ends of the metal band toward each other, causing them to overlap until the metal band is drawn tight around the wheel, and the two ends of the band are then secured together by riveting or otherwise. The clamps are then removed and a portion of the metal band is left exposed, and it is necessary to work the rubber tire over the metal band to bring the two ends of the rubber tire together and cover the exposed portion of the band. This workingof the tire over the band is usually effected by striking the rubber tire glancing blows with a mallet on each side of the joint. This method is objectionable in many ways, among others being the liability of injuring the tire and of unduly stretching it at some portions, while other portions may be compressed.

The object of my invention is to provide an apparatus by which the rubber tire may be moved over the band by applying a rolling pressure to the tire in opposite directions on each side of the joint, so that the rubber tire will be moved uniformly on each side of the joint to bring its ends together and the tire will not be injured in any manner.

The invention will be fully described hereinafter, reference being had to the accompanying drawings, in which Figure 1 is an elevation of my improved tire-setter in position to act on a rubber tire. Fig. 2 is a bottom plan view of the tire-setter. Fig. 3 is a sectional view of the sliding pivot-block detached, and Fig. 4 a sectional view of the press ure-roller and guide detached.

A indicates a wheel-horse having a vertical standard a, preferably threaded at its upper portion.

B indicates a wheel, and b a rubber tire thereon, a space I) being shown between the.

ends of the,tire such as exists after the ends of the metal band I)? have been secured together and the clamps removed, as heretofore indicated. The hub of the wheel fits over the standard a, and any suitable meansmay be employed to prevent the wheel from turning on thestandard.

The tire-setter consists, essentially, of a lever 0, having an adjustable sliding pivotblock D at one end, and a pin E slidably mounted in the lever andcarrying a pressureroller H and guide G. The inner ends ofthe lever is slotted, as indicated at c, to receive the block D, and the latter is provided with lips 01 to engage the upper and lower faces of the lever O on each side of the slot. The block D is provided with an opening (1 to receive the standard a, which latter serves as a pivot about which the lever swings. The inner end of the lever C is provided with a boss f, having a threaded opening through which a threaded rod F passes, and is swiveled to the block D, preferably by a ball-andsocket joint, as indicated at f. The rod F is provided with a handle f Intermediate its ends the lever O is provided with another slot e, through which the pin E extends. The pin E has an annular flange 10,adapted to engage the lower face of the lever O, a squared portion 11 to fit in the slot e, and a threaded upper end 12 to receive a clamping-nut 13, which engages the upper face of the lever G. The pin E can thus be adjusted lengthwise of the slot 6 and clamped in any desired position, but cannot turn in the slot. Below the flange 10 the pin E is cylindrical and forms a journal for the pressure-roller H, and below the roller is an angular portion 14, on which the guide G is fitted and which is held in position by a nut 15 on the lower threaded end of the pin.

When the tire-setter is to be used,the pivotblock D is fitted on the standard a and supported upon the end of the wheel-hub, or there may obviously be a washer-platebetween them. As shown, the lever G is bent in ogee form to bring the pressure-roller H in the samehorizontal plane as the tire. The roller LCD -H may be caused to engage the tire by adjusting the pin E in the slot 6, and when so engaged the guide G will engage the under face of the felly. The hand-screw It will be tightened on the-block D sufficiently to prevent undue wabbling of the lever and yet permit the block D to turn on the standard a. It now the screw F be operated, any desired dei gree of pressure maybe established between the roller H and the'rubber tire, and then by moving the lever toward the joint to be form ed Without limiting myself to the precise de-' tails of construction illustrated and described,

I claim-- I 1. In an apparatus for moving the separated ends of a rubber tire toward each other over' an embedded metal band, after said tire has been fittedin the channeled felly of the wheel, the combination of a lever having a slot at one end, a block slidably mounted in said slot and 'provided with an opening to receive a pivot-pin extending through the hub of the wheel, a threaded adj Listing-rod supported in a threaded opening in the end of the lever and having a swivel connection with the sliding block, a pin s'lidably mounted on the le- ,venintermediate the ends of the latter, means to clamp the pin to the lever, anda roller and guide carried by said pin and adapted respectively to engage the .outer periphery of the tire and one side of the felly, substantially as and for the purpose set forth.

1 2. In an apparatus for moving the separated ends of a rubber tire toward each other over an embedded metal band after said tire has 7 on the horse,lof a lever 0 provided with a slot 0 at the inner end and a slot 6 intermediate its ends, a pivot-block D slidingly'supported in the slot 0 and adapted to be supported on the end of a wheel-hub and having an opening through which the standard a eXtends,an'ad 'justing-screw mounted in the end of the lever and having a swivel connection to the pivotblock, a pin slidingly supported in the slot'e, means to clamp said pin to the lever, and a roller and a guide mounted on said pin below the lever, and adapted to engage the outer periphery of the tire and one side of the fefly of a wheel respectively, and said lever being bent to bring the roller and guide in a horizontal plane different to that of the vpivotblock, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN A. JOHNSON.

Witnesses:

J. D. HIGHTOWER, LUTHER BRAZIER, 

